eipley



(No Model.)

D. O. RIPLEY.

MANUFAUTURE OF GLASS SIGNAL GLOBBS.

Patented June 5,1883.

ITLVEHLJRL NITED STATES PATE T Price.

DANIEL C. RIPLEY, OF PITTSBURG, PENNSYLVANIA.

MANUFACTURE OF GLASS 'S lGNAL-GLOBES.

SPECIFICATION forming part of Letters Patent No. 278,746, dated June 5, 1883.

Application filed August 14,1882. (No model.)

To all whom, it may concern:

Be it known that I, DANIEL C. RIPLEY, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in the Manufacture of Glass Signal-Globes; and I do hereby declare the following to be a full, clear, and exact description thereof, reference being had to the accompanying drawings, forming part of this specification, in which Figure l is a view of one half of my im proved mold. Fig. 2 is a sectional view of a signalglobe made in the mold, and shows the method of securing the attachment device thereto. Fig. 3 is a side view of the attachment or suspension device.

Like letters of reference indicate like parts in each.

My improved mold is formed of two sections, c-and b. The lower section, a, is solid, and on its upper surface around the moldingcavity it has a dovetailed projection, 0, around which the hinged section b is placed to center it therewith. The upper section, b, is composed'of two parts hinged together at b, and having handles If for opening and closing it. On its lower surface it is recessed to correspond with the dovetailed projection upon the lower section, a, so that when placed upon the part a and closed the halves will close upon the proj ections 0, so as to secure the two parts a b together, and to center their central cavities so that the two will constitute one molding-space, d. The molding-space d continues upward through the section b, and at its upper end terminates in a cylindrical screw-threaded portion, 6. The mold being put together as described, the workman gathers the required amount of glass on the end of his blow-pipe, inserts it into the mold, and blows it until it is of the requisite thinness and conforms to the shape of the cavity (Z and its threaded portion 0. This operation produces a globe, f, of the required shape, with an externally-threaded neck, f. The globe f, thus made, is removed from the mold, the blow-over cut-off and the globe annealed in the usual way. It is then washed in the inside, either by brush or otherwise, with a phosphoritic paint or composition, which gives to it the property of phosphorescence, so that if exposed to the light during the day or to the suns rays it will be h, and cast or otherwise formed upon it a collar, i, which is screw-threaded on its periphery and of the proper diameter to be screwed into the end of the ferrule g. The point of the nail h projects from one side of the collar and the head or lip from the other. If it is desired to hang the signal-ball, the pointed end of the nail 71 is put inside of the globe, when the collar 1' is screwed into it, and if it is desired to attach the globe to the wall or board, the pin is either driven or screwed into the wall and the globe is screwed onto it, the eye 71/ going inside the globe.

Difficulty has been experienced in coating the insides of the globes with a ph osphoritic paint, owing to the fact that it runs down andrequires repeated applications to obtain a permanent coat thereon. I obviate this trouble by sprinkling the inner surface with sand after the paint has been applied, which has the effect of preventing the draining down of the paint and gives a regularly-coated surface. I do not desire to limit myself to the use of this part of my invention upon globes alone, but

claim it in connection with the application of phosphoritic paint to glass surfaces generally.

The globe thus described may be used for various purposes. It maybe placed upon chandeliers in halls or rooms at night, and is sufficiently luminous to act as a guide, or to indicate the position of articles in a room. It may be placed upon the gas-fixture to show its position, so as to guide a person thereto. It may be used in .distilleries, oilrefineries, powder works and magazines, and similar places for the manufacture and storage of explosive substances, for the purpose of guiding the watchman at night in his rounds. It may also be used as a door-knob, or be placed to indicate the boundaries of paths and roads in lawns and parks.

I do not limit myself to the exact form of moldcavity shown, as the globe may be formed of any desired shape. The mold I have described is well fitted for the rapid and economical production of the globes.

The application to the inside of the globe protects the phosphoritic paint from abrasion by use and handling, and produces a finished and handsome article.

I do not limit myself to the formation of a globe with a threaded. neck, nor to the forma tion of a globe with a neck, as it may be made without the threaded portion and attached to the fastening devices by a plain neck, or the attachment maybe formed by suitable devices entering the hole in the side.

lam aware that signal-buoys have heretofore been devised in which a portion of the exposed part was constructed of glass with double walls, between which was placed a phosphoritic powder. 1 disclaim this, because it is not my i11- vention, and differs essentially therefrom, in that it uses a powder and not apaint or coating laid on and adhering to the inner surface, and is of a construction not practicable in the manufacture of glass globes or similar articles.

Vhat I claim as my invention, and desire to secure by Letters Patent, is

1. The method of making luminous glass globes, consisting of forming a globe of clear glass, and then coating it internally with a phosphoritic compound or paint, substantially as and for the purposes described.

2. A signal-globe formed of glass and coated internally with a phosphoritic compound or paint, substantially as and for the purposes described.

3. A glass globe or similar article coated i11- ternally with a phosphoritic compound or paint and having a fastening or suspension device attached to it, substantially as and for the purposes described.

4. A glass globe or similar article coatedinternally with a phosphoritic compound or paint and provided with a screw-collar, in combination with a reversible attaching device having a drive pin or screw at one end and a suspension head or loopat the other, substantially as and for the purposes described.

5. The method of coating glass articles with phosphoritic paint, consisting in applying the hand this 12th day of August, A. D. 1882;

DANIEL C. RIPLEY.

Vitnesses:

T. B. KERR,

J AMES H. PORTE. 

